Global travelers who've been vaccinated also don't need to take a COVID test before heading overseas, unless their destination country requires one, or self-quarantine upon arriving back in the US.
Why the guidance change?
Khan said the update reinforces the safety and effectiveness of the vaccines, and is another incentive for people to get vaccinated.
The CDC has said it will continue to update guidance about how to socialize, travel and return to workplaces as more Americans get vaccinated.
Domestic travelers who are fully vaccinated - meaning two weeks have passed since their second dose of the Pfizer-BioNTech or Moderna shot or their one and only Johnson & Johnson shot - do not need to self-quarantine upon arriving at their destination and "do not need to get tested before or after travel unless their destination requires it", according to the CDC. If they do travel, the agency says to get tested one to three days before the trip, and three to five days after. "And so our update on this is really only for those who are vaccinated, and that represents about 20% of the adult population".
"The science shows us that getting fully vaccinated allows you to do more things safely, and it is important for us to provide that guidance, even in the context of rising cases". Those who are not fully vaccinated should continue to self-quarantine for 7 days after travel and a negative test, or 10 days after travel if not tested.
When that guidance was released in early March, Walensky said the agency would wait to change travel recommendations until a higher percentage of Americans were vaccinated and the agency had more evidence regarding whether vaccinated individuals could spread the virus.
The report also noted that almost 1.6 million passengers boarded domestic flights on Sunday, which was the most on any day since the beginning of the coronavirus pandemic. Already, the agency had said fully vaccinated people could visit with each other indoors without wearing masks or social distancing.
The U.S. began its vaccine rollout in mid-December.